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WHS Handicap Index Formula:
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The WHS (World Handicap System) Handicap Index provides a standardized measure of a golfer's playing ability. It is calculated using the best 8 score differentials from the player's most recent 20 rounds, multiplied by a factor of 0.96.
The calculator uses the WHS Handicap Index formula:
Where:
Explanation: The formula takes the average of a player's best 8 score differentials from their last 20 rounds and applies a 0.96 multiplier to calculate the final Handicap Index.
Details: The Handicap Index allows golfers of different abilities to compete fairly. It provides a consistent measure of a player's potential ability and is used worldwide for tournament play and casual games.
Tips: Enter exactly 8 score differential values, one per line. Score differentials should be numeric values representing the difference between a player's score and the course rating adjusted for slope.
Q1: What is a score differential?
A: A score differential is calculated as: (113 / Slope Rating) × (Adjusted Gross Score - Course Rating - PCC adjustment). It represents a player's performance relative to the course difficulty.
Q2: Why use the best 8 out of 20 scores?
A: Using the best 8 scores reflects a player's potential ability rather than average performance, while the 20-round window ensures the index remains current.
Q3: What is the purpose of the 0.96 multiplier?
A: The 0.96 "Bonus for Excellence" factor slightly reduces the handicap index, encouraging improvement and ensuring handicaps represent potential rather than average ability.
Q4: How often should handicaps be updated?
A: Handicap indexes should be updated after each round played under the rules of golf. Most systems update overnight when new scores are posted.
Q5: What's the difference between Handicap Index and Course Handicap?
A: Handicap Index is a portable measure of ability. Course Handicap is specific to each course and is calculated as: Handicap Index × (Slope Rating / 113).